<template><div>
    <div class="search">
      <input class="search-input" v-model="keyWord" type="text" placeholder="输入城市名或拼音"/>
    </div>
    <div class="search-content" ref="search"
      v-show="keyWord"
    >
        <ul>
            <li  class="search-item border-bottom
            " v-for="item of list" :key="item.id" @click="handleClick(item.name)">{{item.name}}</li>
            <li class="search-item border-bottom" v-show="hasNoData">没有匹配数据</li>
        </ul>
    </div>
          </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyWord: '',
      list: [],
      timer: null,
      show: true
    }
  },
  watch: {
    keyWord () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyWord) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.spell.indexOf(this.keyWord) > -1 || value.name.indexOf(this.keyWord) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      }, 100)
    }
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  methods: {
    handleClick (city) {
      this.$store.commit('changeCity', city)
      this.$router.push('/')
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  }
}
</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl';
.border-topbottom {
    &:before {
        border-color: #ccc;
    }

    &:after {
        border-color: #ccc;
    }
}

.border-bottom {
    &:before {
        border-color: #ccc;
    }
}
.search
    height: 0.72rem;
    padding: 0 0.1rem;
    background: $bgColor;
    .search-input
        box-sizing: border-box;
        width: 100%;
        height: 0.62rem;
        line-height: 0.62rem;
        text-align: center
        border: 0.6rem;
        color: #666;
        padding:0 .1rem
.search-content
    z-index :1
    background :#fff
    overflow hidden
    position:absolute
    top:1.58rem
    left:0
    right:0
    bottom:0
    .search-item
       line-height :.62rem
       padding-left:.2rem
       color:#666
       background:#fff
</style>
